const { app, BrowserWindow,ipcMain,dialog } = require('electron');
const path = require('path');

// Handle creating/removing shortcuts on Windows when installing/uninstalling.
if (require('electron-squirrel-startup')) { // eslint-disable-line global-require
  app.quit();
}



const createWindow = () => {
  // Create the browser window.
  const mainWindow = new BrowserWindow({
    width: 800,
    height: 600,
    webPreferences:{
      // 让html中的js可以操作node的API
      nodeIntegration:true,
      contextIsolation:false,
      webviewTag:true
    }
  });

  // and load the index.html of the app.
  mainWindow.loadFile(path.join(__dirname, 'index.html'));

  // Open the DevTools.
  mainWindow.webContents.openDevTools();

  // 打开文件夹
  /**
  dialog.showOpenDialog({
    properties : ['multiSelections','openFile','showHiddenFiles']
  }).then(result=>{
    if ( result.canceled ) console.log('取消了')
    else console.log(result.filePaths)
  })
   */



  // 监听页面关闭
  mainWindow.on('close',(e)=>{
    e.preventDefault()
    console.log('页面关闭了')
    dialog.showMessageBox(mainWindow,{
      title:'确认关闭？',
      type:'warning',
      buttons : ['取消','关闭']
    }).then(index =>{
      // index.response是 buttons 数组的索引，表当前点击的按钮
      // 1 是 关闭 ，执行关闭操作
      if ( index.response) app.exit()
    })
  })

};

// This method will be called when Electron has finished
// initialization and is ready to create browser windows.
// Some APIs can only be used after this event occurs.
app.on('ready', createWindow);

// Quit when all windows are closed, except on macOS. There, it's common
// for applications and their menu bar to stay active until the user quits
// explicitly with Cmd + Q.
app.on('window-all-closed', () => {
  if (process.platform !== 'darwin') {
    app.quit();
  }
});

app.on('activate', () => {
  // On OS X it's common to re-create a window in the app when the
  // dock icon is clicked and there are no other windows open.
  if (BrowserWindow.getAllWindows().length === 0) {
    createWindow();
  }
});

// In this file you can include the rest of your app's specific main process
// code. You can also put them in separate files and import them here.
